CMI8768 Datasheet, PDF (12/17 Pages) C-Media Electronics – PCI 8CH Integrated Sound Chip

PCI 8CH Integrated Sound Chip
CMI8768 Datasheet Rev 1.0
5.2 Analog I/O
Pin No
57,58
59
62
64,65
66,67
68
69
70
71,72
73,74
75,76
77,78
79
80
Signal Name
XSUROUTL-R
EXTBASS
XINTREF
XADOUTL-R
XADCFL-R
XCNOUT
XBSOUT
XCDGND
XCDL-R
XREARL-R
XLNL-R
XAUXL-R
XPCSPKIN
XMIC
Type
Description
O Back surround out L/R channel
I External bass input
O Internal reference voltage (for testing purpose)
O Front out L/R channel
O ADC S/H capacitors
O Center channel output
O Bass channel output
O
CD audio differential ground
channel output
O CD audio differential L/R channel output
O Side surround out L/R channel
I Line-In L/R channel
I Aux input L/R channel
I PC beep or mono input
I Microphone input
5.3 Power & Ground
Pin No
4, 10,
18, 27,
37, 45,
100,
124
54, 115
83
3, 11,
17, 28,
36, 46,
53, 82,
99, 116,
125
61, 81
60, 82
Signal Name
VDDIO
VDDCORE
VDD5V
GND
AVDD
AGND
Type
Description
I PCI I/O power pin (3.3V)
I Core logic power pin (3.3V)
I PCI I/O power pin (5V)
I Digital ground
I Analog I/O power pin
I Analog ground
5.4 NC
Pin No
63, 90-97,
123
101
–
111,
114,
118,
NC
Signal Name
Copyright 2004-2005 © C-Media Electronics Inc.
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